Issue 9, 2011

Temperature and pH responsive hybrid nanoclay grafted with PDMAEMA

Abstract

Recent advances in grafting from techniques have made it possible to produce hybrid materials from montmorillonite clay by covalently grafting polymers to the surface of montmorillonite particles. In this article the temperature and pH responsiveness of a hybrid material consisting of poly(dimethylaminoethyl methacrylate) (PDMAEMA) grafted clay is investigated by differential scanning calorimetry, pressure perturbation calorimetry and fluorescence spectroscopy. The phase transition is affected not only by the pH of the aqueous medium, but also by the electrostatic interactions between the positively charged polymer and negatively charged clay particles.

Graphical abstract: Temperature and pH responsive hybrid nanoclay grafted with PDMAEMA

Supplementary files

Article information

Article type
Paper
Submitted
31 Mar 2011
Accepted
30 May 2011
First published
29 Jun 2011

Polym. Chem., 2011,2, 2027-2036

Temperature and pH responsive hybrid nanoclay grafted with PDMAEMA

J. Niskanen, M. Karesoja, T. Rossi and H. Tenhu, Polym. Chem., 2011, 2, 2027 DOI: 10.1039/C1PY00143D

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